In this tutorial, we will show you how to install ELK Stack on Debian 9. ELK stack is a collection of three open-source products, Elasticsearch, Logstash, and Kibana, and is a robust solution for searching, analyzing, and visualizing data. Elasticsearch is a distributed, RESTful search and analytics NoSQL engine based on Lucene, Logstash is a light-weight data processing pipeline for managing events and logs from a wide variety of sources and Kibana is a web application for visualizing data that works on top of Elasticsearch. This ELK Stack tutorial should work on other Linux VPS systems as well but be tested and written for a Debian 9 VPS. Installing ELK Stack on Debian 9 is an easy and straightforward task, just follow the steps below, and you should have it installed in less than 10 minutes.
In this tutorial, we will show you, how to use the Ubuntu crontab. In a few simple steps, we will explain, how to automate your system tasks on Ubuntu, using the crontab in Ubuntu. The cron software utility is a time-based job scheduler in Unix-like operating systems. Cron is driven by a crontab (cron table) file, a configuration file that specifies shell commands to run periodically on a given schedule. The crontab files are stored where the lists of jobs and other instructions to the cron daemon are kept. Users can have their own individual crontab files and often there is a system-wide crontab file (usually in /etc or a subdirectory of /etc) that only system administrators can edit.
